Apparatus for drawing hollow glass articles.



M. J. HEALY. APPARATUS FOR DRAWING HOLLOW GLASS ARTICLES.

APPLICATION FILED MAR. 12, 1910.

1,008,465. Patented N(v.14,1911,

M. J. HEALY. APPARATUS FOR DRAWING HOLLOW GLASS ARTICLES.

APPLICATION FILED MAR.12, 1910. Patented Nov. 14,1911.

5 SHEETS-SHEET 2.

W1 NESSES M. J. HEALY. APPARATUS FOR DRAWING HOLLOW GLASS ARTICLES.

APPLICATION FILED MARJZ, 1910. I

Patentet, Nov. 14, 1911.

5 5 HEET8SHBET 3.

I W T/VESSES M. J. HEALY. "APPARATUS FOR DRAWING HOLLOW GLASS ARTICLE:

APPLICATION FILED EAR-12, 1910.

Patented Nov. 14, 1911;

5 SHEETS-SHEET 4.

M. J. HEALY.

APPARATUS FORDRAWING HOLLOW GLASS ARTICLES.

APPLICATION FILED MAR. 12. 1910.

1,008,465. Patented N0v.14, 1911.

1 WITNESSES [NI END )R -UNITED STATES PATENT OIBFICE.

MACK J. HEAL Y OF BRADFORD, PENNSYLVANIA, ASSIGNOR TO GO YSOLIDA'IED WIN- DOW GLASS COMPANY, OF-BRADFOBD, PENNSYLVANIA.

APPARATUS FOR DRAWING HOLLOW GLASS ARTICLES.

To all whom it may concern:

Be it known that I, MACK J. HEALY, of Bradford, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Drawing Hollow Glass Articles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in apparatus for drawing hollow glass articles, such as the cylinders used for making window glass. The object being to dispense with the use of forehearths or dog houses, and draw the glass directly from the tank. A further object is to so construct the tank that the cylinder will be drawn from a shallow depth, while maintaining a deeper and larger volume of glass at the sides and at the rear of the drawing openings, thereby cooling the glass, and maintaining the same immediately under the drawing opening, at a temperature and consistency which will permit of the rapid drawing of a cylinder of uniform thickness, while the hotter volume of glass at the sides andvat the rear of the drawing opening, rapidly remelts the glass left in the ring after severing the cylinder.

With these and other objects in view, my invention consists in parts and combinations of parts of the tank as will be. more fully described and pointed out in the claims.

In the accompanying drawings Figure 1 is a view in elevation of a section of a tank showin my improvement. I Fig. 2 is a plan view 0 same. Fig. 3 is a view in horizontal section of the tank having four drawing openings. Fig. 4 is a view in vertical sec-. tion through a portion of the tank and one drawin opening. Fig. 5 is a view in plan of one rawing opening. Fig. 6-is a view in vertical sectionon the line A-B of Fig. 4. Fi 7 is a view from the inside of the tank 100 ing toward the piers and shades. Figs. 8 and 9'are views in plan and, side elevation respectively of the side shades. Fig. 10 shows views in plan, edge and end elevations of one of the top stones. Figs. 11, 12 and 13 are views in plan, sideand front elevation respectively of the pier crown. Fig.

14 shows views in plan and edge'elevation- Specification of Letters Patent.

Application filed March 12, 1910. Serial No. 548,937.

Patente d Nov. 14, 1911.

of one of the back ShaduS, and Fig. 15 is a view in section of the ring shield and one of the floating rings, sho wing the means for centering the latter.

In the drawings, I ha re shown part of a melting tank provided W1l3l1 an enlarged semi-circular end as sh own. in Fig. 3, in-

which the drawing open ngs are located, all forehearth or other pr )jections from the tank being dispensed wth. While I have shown a tank with four drawing openings, I would have it unders .0061 that the number is immaterial. The cap 1 of the tank is supported at its edge on the breast wall 2, and by any other supports that may be found necessary, and provided at the semicircular end of the tank, with one or more openings 3, immediately under which, and on the floor or best I of the tank, are two courses of clay bl ck 5 covered by a slab 6, the latter being verlapped and held down at its front or out er end by a projection from the breast wa t1 2, and at its rear end by a projection 7 Prom the pier 8,-1.3 clearly shown in Fig. '4 There is a pier 8 in rear of each drawing Jpening in the tank, and a raised bottom u der each opening, while at the sides of cat h slab 6, and hence between, the several 'drz wing openings, the

floor of the-tank is at a lower level and preferably in the plane of the floor or base at the rear of the piers. a reduction in the dep h of the glass immediately under the drs wing opening, with an increased depth ai the sides, consequently as soon as the floating ring from which the cylinder h LS been drawn, is

'forced from under the opening to one side,

This provides for extend above the level )f the glass, and as shown in Fig. 3, the piers are sufiiciently far apartto permit the floating rings tobe freely moved. and m mipulated etween them. Each pier 8 is ca ped by a refractory clay crown piece 9 whi 1h latter projects at the front, and is curved as shown in Figs.2 and 4, to form the rear portion of the top 20 against the outer ends point of the furnace,

(three in the present instance) the rear high above same,

stone, the open center of which'latter constitutes the drawing opening. Located on the breast wall at the front of each drawing are front top. stones 10,

edges of which are curved in the arcs of a circle and constitute the front of the drawing opening, the sides'of the latter being formed integral as at 11, with the side shades 12. The to stones are form (1 of refractory clay, and when thus forme and placed in position, rest in a plane above the level of the molten glass, and sufficiently to permit the floating rings to be readily moved into and out of position under the drawing opening. The front stones 10 are seated on, and supported by the breast wall of the tank.

Superimposed on the pier crown 9 are the 14, 15 and 16, the first,

rear bottom shades of which projects forwardly slightly beyond the others, as shown in Fig. 4:, to form seats or shoulders against which shoulders 17 on the rear edge of the side shades 12 rest, and by which the said side shades are partly supported. The rear bottom shades 14, 15 and 16 are curved at their fronts as shown in Figs. 1 and 4, and are capped by the rear top shade 18, which is also curved to conformto the curvature of.the lower rear shades and passes up through the open-' ing 3 in the cap the latter, and terminates in a plane above the adjacent edges of the cap. The side shades 12, are each referably made in two sections connected by mortise and tenon joint, and their upper edgesare inclined up- --Wardly lfrom the front to the rear. fro'nt elids rest on the front top stones 10 The at the s de edges ofthe latter, and they are support (1 at their rear edges upon the ier crown and'rear bottom shade14, the sectlons 11 of the side shades completing the circular I drawing opening in the top stones.

The side shades diverge outwardly as shown in F i s. 1 and 5 thusproviding ample room anc l space at theifiont for the manipulation of the rings" and also for severlng the cylinders f In the present instance I have provided screws 19 mounted in su ports carried by the channel irons 13, for orcing the blocks of the sideshades,

. so as to provide and compensate for expansion while the tank isihot, and to take up the contraction as the fines are Withdrawn from the tank. The channel irons 13 are located at intervals around the tank for bracing the latter, and areconnected ,by the tie rods-21, which support them at the-top.

The ca or arch 1, is sprung from the breast wa 1 over the tank, and as before explained, the openings 3 therein are larger than the shades and are wholly disconnected from the latter and from the piers 8, so that 1, without contacting with has been placed under any movement of the same due to expansion or contraction, will not be communicated to the shades, nor will any movement of the latter have any effect on the cap.

As shown in Fig. 7, the pier crown is cut away on its underside at the rear as at 9, so as to provide ample room for the free passage of the floating rings 23 around the pier, from one side of the drawing opening to the other.

With the construction above described it will be seen that the depth of molten glass immediately under the drawing opening is less than at the sides and at the fear. The cylinder being drawn is however protected from the rear by the piers, and at the sides by the floating ring 23, rin shield 24, top stones and shades, and is on y exposed from below, to the mass of glass immediately below.

The floatin rings 23 above referred to are of the or inary construction and material and are moved from under the drawing opening, and into position under said opening, by hooked rods operated through suitable openings in the breast wall of tank. After a cylinder hasbeen drawn, the floating ring with the cooled glass adhering to and within the same, is pushed from under the drawing opening to the side and gradually around the pief to the opposite side. During its movement around the pier, the intense heat remelts the glass therein and puts the ring and the glass therein in condition for another drawing. A series of floating rings, usually three, are provided for each rawing opening, hence after using one, .another is ready for use without the loss of any time other than that necessary to placing it in position. This floating ring is centered and held in position immediately under the drawing drawing opening so as to freely pass through or into same, and is of a size to embrace the floating ring 23 and retain the latter centrally under the drawing opening.

This ring shield 24 is suspended by suitable. counter-weighted hoisting cables 26by which it 15 raised in order to permit the floating rihg 23 to be moved out, and another ring to be moved into place.

the drawing opening, the ring shield is lowered and thus assists, as before explained, in shielding the cylinder fromthe heat of the mass of molten glass except that within and immediately below the floating ring. The ring shield 24 is made of suitable refractory material and is provided at its top with a metal ring 27 bolted thereto, the bolts being sealed within fihetshield to 'protect them from the direct vBy the improvements above described 'I obtain all the advantages incidental todrawopening by a ring shield 24. This shield is slightly smaller than the After a floating ring ing from a pot, without the loss of time and expense of ladling and as the cylinders are drawn directly from the tank the operation may be a continuous one.

It is evident that many slight changes, might be resorted to in the relative arrangement of the parts shown and described without departing from the spirit and scope of my invention hence I would have it under stood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described, but

. Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. Apparatus. for drawing glass articles comprisingatank. having a series of drawing openings therein and a pier within the tank in rear of each drawing opening, the

floor or base of those parts of the tank in front of the piers and under the drawing openings being in a plane above the floor or base intermediate the drawing openings. 1

2. Apparatus for drawing glass articles comprislng a tank having a series of top stones each. having a drawlng opening therein, and a pier within the tank and supporting the rear end of each top stone,'those portions of the floor of the tank in front of the piers and under the topstones being in a, plane above the floor intermediate the piers and topstones.

3, Apparatus for 'comprisln 'a tank the cap Of WhICh has an o ening t erein, a pier located at the rear said opening, a top stonesupported by the breast wall and pier and havlng a drawing opening therein and shades on said top stories at the sides and backof the drawing opening and extending up into the opening in the cap of the tank. I I

4. Apparatus for drawing glass articles comprising atank, the. cap of which has an opening therein, the floqr of the tank immediately below said opening being in a plane above the floor of the'tank at the sides of the opening, a pier located at the rear of said opening,'a top stone supported by the breast wall and pier and having a drawing open- 5 ing thereimand a shade on said top stone andpier at the sides and back ofthe drawing opening andext-ending up into the openthe .cap of the tank.

'5.Apparatus for drawin vglass articles,

comprising a .melting tank t e cap of which is provided with an opening, a pier at the rear of said opening, top stones su ported by the breast wall of the tank and t e pier,

the said top stones having a-'drawing open- H ing therei n, and a shade on the top stone and pier, the said shade extending up to the cap but not connected to the latter..

6. Apparatus: for drawing glass articles" comprism a melting tank having an openin its p, a raised floor immediately be.

drawing glass articles shade on said top stone, an

low said opening, a pier at the rear of said opening, a sectional top stone 5 upported by the breast wall of the tank and by the pier,

thefsaid .top stone having the di awing opening therein, and a shade closing the tank between the outer edges of the U P stone and cap but disconnected from the latter so as to permit either to expand or cl ntract independently of the latter.

. 7..Apparatus for drawing glass articles comprising a melting tank havf ng an open ing in itscap, a pier at the 'ear of'said opening, asectional horizontal top stone the sections of which are supported y the breast wall ofthe tank and by the p: er andlprovided with a drawing opening and a sectional shade at the sides and ear of said opening and extendingfrom th a horizontal jtop',-a pier at the rear of said r pening, the said ier being cutaway at its ldQS immediate y-below its crown, a sectior a1 top stone havin a drawing opening them in, the said 'stone ing supported on the br :ast wall of the tank and by the pier crown, a" sectional backand side shade onsaid top stone,'supported by the latter and by the pier, and a floating ring ada ted to be may ed into position underthe rawing opienir g.

10. Ap aratus'fordrawin g1: ss comprisng a tan the cap of which is pr )vided with an opening, that portion of the" tloor of, the

tank immediately, under said op ming being raised, a pier at the "rear of the raised section of the floor a sectional to stone sup- ,orted by the breast 'wall of the tank and y the pier, a sectional shade, sections of which have mortise and tenon joints and adjustable means for holding the sections of said shade in proper, relative pisition, the said shade closing the tank betw eefithtop stone and cap, but disconnected "from-the v latter.

L11 opening.

11. A glass-drawing apparati s,

ing

a tank having an opening, in its ca thatportion ofthe floor of the t2 nk beneat said opening being raised abovi thejilane or the floor at the sides of said opening, a pier at the rear of the opening, asecti'onal "top stone carried by the pier and breast wall and having a drawing openin therein, a

through the opening in the cap extending f thetank,

- the rear of the opening in the cap, a sec and a counterbalanced shield ring suspended within the drawing opening 1n the top stone.

12. A glass drawing apparatus comprising a tank having an opening through its cap, a raised floor immediately under said opening, a pier at the rear of said raised floor, a horizontal top stone having a drawing opening therein,.a sectional side and rear shade supported by the top stone and pier, and extending up through the open-- ing in the cap of the tank and a counterbalanced shield ring.

13. Apparatus for drawing glass articles comprising a tank having an opening through its cap, a pier in rear of said opening, a sectional top stone resting on the breast wall and on the pier, sectional side and back shades on the top stone and piers and adjustable means for applying pressure against the ends of the side shades for holding the sections of same together.

14. Apparatus fordrawing glass comprising 'a tank the cap of which is provided with an opening, a pier within the tank at tional top stone supported by the breast wall of the tank and by the pier, a sectional shade, sections of which have mortise and tenon joints, and adjustable means for bold 15. A glass drawing apparatus coinprising a tank having an opening in its cap, a

pier at the rear 0 said opening, a sectional top stone carried by the pier and breast wall and having a drawing opening therein, a

shade on said top stone, the said shade ex-' tending through the opening in the cap of the tank and a counterbalanced shield ring suspended within the drawing opening in the top stone.

16. A glass drawing apparatus compris ing a tank having an opening through its cap, a pier at the rear of said opening, a horizontal top stone having adrawing opening therein, a sectional side and rear shade sup orted by the top stone and pier and exten ing up through the opening in the cap of the tank and a counterbalanced ring shield.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

MACK J. HEALY.

Witnesses -W. C. PURPLE, ADA M. MILLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. 

